1my hair is dirty. i … wash it. a. should b. need c. must 2the city museum is very interesting. you visint it a. must b. could c. need 3 i eat too mush chocolate. i really stop a. must b.should c.mustn"t 4he doesn"t look well. i think he .. go to the doctor. a.can b. must c should 5.we decided to go to the countryside. you get up early tomorrow. a.must b. can c shouldn"t 6.if you have a bad toothache you go to the dentist immediately a. should b. can c. must 7.all the student to finish the final test in time a. are able b.were able c.could help you in the evening if you want a.can b.will be able c. am able 9 my sister a can soon a. is able to b. was able to c. will be able to 10 she ski better than me a. can b.was able c. is able